(19)
(11) EP 4 074 774 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
01.02.2023 Bulletin 2023/05

(43) Date of publication A2:
19.10.2022 Bulletin 2022/42

(21) Application number: 22162170.9

(22) Date of filing: 15.03.2022
(51) International Patent Classification (IPC): 
C08L 9/00(2006.01)
C08K 3/36(2006.01)
C08L 9/06(2006.01)
 B60C 1/00(2006.01)
C08K 5/548(2006.01)
B60C 11/00(2006.01)
(52) Cooperative Patent Classification (CPC):
B60C 1/0016; C08L 9/00; C08L 9/06; C08K 3/36; C08K 5/548; Y02T 10/86; B60C 2011/0033; B60C 11/005
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 15.04.2021 JP 2021069096

(71) Applicant: Sumitomo Rubber Industries, Ltd.
Kobe-shi, Hyogo-ken 651-0072 (JP)

(72) Inventor:
  • MATSUI, Tomoya
    Kobe-shi, Hyogo, 651-0072 (JP)

(74) Representative: Manitz Finsterwald Patent- und Rechtsanwaltspartnerschaft mbB 
Martin-Greif-Strasse 1
80336 München
80336 München (DE)

   


(54) TIRE


(57) Provided is a tire having excellent wet grip performance during high-speed running. Included is a tire including a tread having a layer of a rubber composition which contains one or more rubber components having a combined content of isoprene-based rubbers, polybutadiene rubbers, and styrene-butadiene rubbers having a styrene content of 30% by mass or lower and a vinyl content of 30% by mass or lower of 90% by mass or more, and silica, and which has a tan δ at 0°C of 0.50 or more, an acetone extractable content of 10.0% by mass or lower, and a density of 1.30 g/cm3 or less, the tire having a maximum tread thickness of 10.0 mm or less and a tire outer diameter of 700 mm or less.







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